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Customer Ratings & Reviews

Your price for this item is $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1780 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers have good things to say about the 650VA Battery Back-Up System, especially its long battery life, overall performance, and ease of use. Many appreciate the reasonable price and adequate surge protection, as well as its convenient size and handy USB ports. Some customers have noted minor issues such as a slight humming noise and, in rare cases, random alarm activations. A few have mentioned its weight and isolated incidents of overheating.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 43 Showing 841-860 of 1,780 reviews
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Good backup power.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works good and keeps the power on. Easy to setup with adequate outlets.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Good power protector

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Really good power surge protector, i use this to power my security cameras.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Great

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to install, no problems setting it up and it works great.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    gamechanger if power goes out & you are watching the game LOL!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Small ups

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good and small ups. needed it for a backup to a camera system.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 4 out of 5 stars

    Happy so far

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Have not had to rely on it for power yet, but I bought this one to replace a similar one (same brand) that had given several years of trusty service. I expect this one to do as well.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Works as expected

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It does works well. Have not had a power outage to see how long it will hold.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great item

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great especially if power goes out. It even has USB ports

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Works as Expected

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    No problems. Worked out of the box. as expected unlike my Computer purchase. Very happy with the product.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great backup for computer

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to set up , like the USB ports in case you need to charge something when the power goes out

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Great product

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great battery back-up at a reasonable price. Very satisfied.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Last a long time

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got this for my brother. He loves to camp out. It works really well for him per himself.

    I would recommend this to a friend
  • Cons mentioned:
    Noise

    Rated 1 out of 5 stars

    I do not recommend it.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I followed the manual's instructions and charged it for the indicated time before using it. As soon as I started using it, it began making the error sound (continuous beep), and I only had a PC, a PS5, and a monitor connected. I had to return it to the store—a disappointment.

    No, I would not recommend this to a friend
    • Brand response from TechSupport
      Posted .

      We’re sorry to hear about your experience with the CyberPower 650VA UPS. The continuous beeping you described usually indicates the connected equipment is drawing more power than the UPS can safely support (the unit provides up to 390 watts).

      This model is intended for smaller electronics or a single desktop setup. We’d be happy to help recommend a UPS better suited for your system or assist under warranty. Please contact us at 1-877-297-6937 or visit https://www.cyberpowersystems.com/support/submit-a-support-ticket/ CyberPower

  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Decent product

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Decent product, no issues as of yet. Seems to work as described.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Works

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this to back up my computer in case of power loss and it worked exactly as I needless it to!

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great in case of power loss

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great in case of power loss. Gives you time to save work and turn off computer safely.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Nice unit

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Just what we needed! Compact, versatile, adequate number of plugs for our needs ... working great!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Nice layout

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nice layout that works perfect for me. Small package! :Lets hope it lasts a long time

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Work well during power outages

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is my second Cyber Power. The first one lasted 4 years until recents storms last month. I like the newer model since it includes 2 USB ports for charging my Apple devices.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Easy to setup.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great device to have in the event of a power outage. Also the protection from power surges.

    I would recommend this to a friend